WO2010038350A1 - Terminal device and connection switching management method - Google Patents
Terminal device and connection switching management method Download PDFInfo
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- WO2010038350A1 WO2010038350A1 PCT/JP2009/004015 JP2009004015W WO2010038350A1 WO 2010038350 A1 WO2010038350 A1 WO 2010038350A1 JP 2009004015 W JP2009004015 W JP 2009004015W WO 2010038350 A1 WO2010038350 A1 WO 2010038350A1
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- 238000004891 communication Methods 0.000 claims abstract description 155
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- 101000737813 Homo sapiens Cyclin-dependent kinase 2-associated protein 1 Proteins 0.000 description 1
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- 101001139126 Homo sapiens Krueppel-like factor 6 Proteins 0.000 description 1
- 101000710013 Homo sapiens Reversion-inducing cysteine-rich protein with Kazal motifs Proteins 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
- H04W12/062—Pre-authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
- H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information
Definitions
- the present invention relates to a terminal device and a connection switching management method.
- WLAN Wireless Local Area Network
- 3G system third generation mobile communication system
- a terminal device (hereinafter referred to as a terminal) is located in an area where the coverage areas of a plurality of different communication networks overlap, that is, any of the plurality of communication networks as a communication path with a server that is a service provider. If it is usable, for example, the connection is switched to a communication network having a higher communication speed (see, for example, Patent Document 1). For example, when a terminal connected to a 3G system communication network moves to an area where the cover area of the 3G system communication network and the coverage area of the WLAN communication network overlap, the terminal can realize higher speed transmission than the 3G system. Switch the connection to the WLAN communication network.
- an independent IP address (local address) is assigned to each device such as a server and a terminal for each communication network.
- the server A, the server B, the terminal B, the GW1, and the GW2 are assigned different IP addresses, and each device is distinguished.
- different IP addresses are assigned to the respective devices. That is, in each of the networks A, B, and C shown in FIG.
- an IP address is assigned to a device located in the own network regardless of other communication networks.
- a part of the cover area of the net A includes a part of the cover area of the net B.
- the network B can transmit at a higher speed than the network A, for example, and has a higher priority than the network A used for communication between the terminal and the server. That is, in the communication between the terminal A and the server A, when both the network A and the network B can be used (that is, when the terminal A is located in the network B), the network B has priority. Is done.
- password authentication is performed between the terminal A located in the network A and the server A located in the network C shown in FIG. That is, terminal A communicates with server A located in network C via network A as a communication path. Further, when performing password authentication, the server A distinguishes a plurality of terminals that request the service of its own server based on the IP address of the request source that requests the service of its own server.
- Fig. 2 shows a sequence diagram when password authentication is performed between the terminal A and the server A.
- terminal A designates server A as a service provider.
- the terminal A transmits a screen display request addressed to the server A to the GW 1 between the network A and the network C shown in FIG.
- the GW 1 converts the transmission source address of the display request from the terminal A into its own IP address (IP-A) of the network C, and transmits the display request with the transmission source address converted to the server A.
- IP-A IP address
- server A determines that password authentication is necessary for the received display request, and in ST5, the password input data for requesting password input as a response to the display request is sent to the display request source (IP- A) is transmitted to GW1.
- the GW 1 transmits the password input data from the server A to the terminal A by performing address conversion (address reverse conversion) opposite to the address conversion in ST3.
- IP-A IP address
- terminal A displays a password request screen.
- FIG. 3 A flow of communication network connection switching processing in terminal A is shown in FIG.
- the terminal A becomes communicable with the server A via the network B, that is, when the terminal A is already connected to the network B (ST101: YES)
- the network is used as a communication path with the server A.
- the connection is switched from A to network B (ST102). Note that if the terminal A is not connected to the network B (ST101: NO), the terminal A communicates with the server A via the network A as it is.
- the terminal A inputs a password (“1234” in FIG. 2) on the password request screen displayed in ST7.
- terminal A transmits the password addressed to server A to GW 2 between network B and network C shown in FIG. That is, the transmission destinations (GW1 and GW2) to which the terminal A transmits information addressed to the server A are different between the transmission of the display request of ST2 and the transmission of the password of ST10.
- GW2 like GW1 in ST3, converts the password source address from terminal A into its own IP address (IP-B) of network C, and converts the password in which the source address is converted into server A. Send to.
- IP-B IP address
- the server A distinguishes terminals based on the IP address. Therefore, since the transmission destination address of the password input data is IP-A, the transmission source address of the password is IP-B, so that the server A recognizes that the password is transmitted from a different terminal and performs password authentication. It fails (ST12). That is, the server A determines that a password has been transmitted from a terminal (IP-B) that has not requested transmission of a password, or determines that a password has not been transmitted from a terminal (IP-A) that has requested transmission of a password. . In ST13, the server A transmits a password authentication result (failure) as a response to the password transmission to the GW 2 that is the password transmission source (IP-B). In ST14, the GW 2 performs address reverse conversion and transmits a password authentication result (failure) to the terminal A. In ST15, terminal A displays the authentication result.
- the server A recognizes the transmission destination terminal that transmitted the password input data and the password transmission source terminal as different terminals.
- An object of the present invention is to provide a terminal device and a connection switching management method capable of switching a connection to a more suitable communication network while normally executing a service from a server.
- the terminal device of the present invention includes a management unit that manages connection switching between the first communication network and the second communication network as a communication path between the own device and a server that is providing a service to the own device; Input means for performing an operation input to a service, and the management means includes information for requesting a reply by the operation input when the operation input is detected or data transmitted from the server In such a case, the connection switching is not performed.
- the connection switching management method of the present invention is a connection switching for managing connection switching between a first communication network and a second communication network as a communication path between a terminal device and a server providing a service to the terminal device.
- the connection switching is not performed when an operation input to the service is detected, or when data transmitted from the server includes information requesting a reply by the operation input.
- connection switching to a more suitable communication network can be performed while the service from the server is normally executed.
- Diagram showing communication system Conventional password authentication sequence diagram
- the figure which shows the flow of the connection switching process of the conventional communication network The block diagram which shows the structure of the terminal which concerns on Embodiment 1 of this invention.
- Sequence diagram of password authentication according to Embodiment 1 of the present invention The figure which shows the flow of the connection switching process of the communication network which concerns on Embodiment 1 of this invention.
- the figure which shows an example of the HTML tag which concerns on Embodiment 3 of this invention The figure which shows the example of execution of the HTML data which concerns on Embodiment 3 of this invention
- one of the first communication network for example, network A shown in FIG. 1 and the second communication network (for example, network B shown in FIG. 1) is used as the communication path between the terminal and the server.
- the second communication network is used with priority over the first communication network.
- the priority of the communication network for example, it may be set according to the specification of the communication system, the communication cost, the communication network congestion response, the communication speed, and the like.
- FIG. 4 shows the configuration of terminal 100 according to the present embodiment.
- the input unit 101 performs an operation input for a service provided by the server. For example, when a password input is requested from the server, the input unit 101 inputs a password in response to the password input request. Then, the input unit 101 outputs operation input information, which is information input by operation (for example, a password input by operation), to the input management unit 102.
- operation input information which is information input by operation (for example, a password input by operation)
- the input management unit 102 manages the output of operation input information to an application that operates as a service corresponding to the operation input information input from the input unit 101. For example, the input management unit 102 outputs the operation input information input from the input unit 101 to the execution unit 103 that executes an application that operates as a service corresponding to the operation input information. Further, the input management unit 102 outputs the operation input information to the switching management unit 108.
- the execution unit 103 uses the operation input information input from the input management unit 102 or the received data from the server input from the transmission unit 104 to execute an application that operates as a service provided by the server. For example, when a password input request is input as received data from the server, the execution unit 103 executes the application using operation input information indicating a password. Then, the execution unit 103 transmits transmission data that is an execution result of the application to the server via the transmission unit 104.
- the transmission unit 104 communicates transmission data and reception data between the execution unit 103 and the server via either the first communication network or the second communication network. Specifically, in accordance with the switching instruction from the switching management unit 108, the transmission unit 104 transmits connection control information indicating which of the first communication network and the second communication network is used to communicate with the server. The data is output to the first communication unit 105 using the first communication network and the second communication unit 106 using the second communication network. For example, when switching the connection of the communication network, the transmission unit 104 requests the one of the first communication unit 105 and the second communication unit 106 that is currently used as the communication path to release the connection with the server, and after switching the connection The other side used as the communication path is requested to connect to the server.
- the transmission unit 104 transmits and receives transmission data and reception between the server and the execution unit 103 via the communication unit (the first communication unit 105 or the second communication unit 106) connected to the server by switching the connection of the communication network. Perform data communication. Further, the transmission unit 104 outputs connection state information indicating a connection state between the own terminal and the server among the received data from the server to the switching management unit 108.
- the connection state information includes, for example, information indicating a state in which a service request is transmitted from the execution unit 103 to the server, or information indicating a state in which a response to the request of the execution unit 103 is transmitted from the server.
- the first communication unit 105 uses the first communication network (for example, the network A shown in FIG. 1) as a communication path for communication with the server according to the connection control information input from the transmission unit 104, the first communication unit 105 receives from the server. Communication of data and transmission data from the terminal is performed via the first communication network. In addition, the first communication unit 105 sends first connection information indicating whether or not the first communication network is usable, that is, whether or not the own terminal is connected to the first communication network, to the switching management unit 108. Output.
- the first communication network for example, the network A shown in FIG. 1
- the first communication unit 105 receives from the server. Communication of data and transmission data from the terminal is performed via the first communication network.
- the first communication unit 105 sends first connection information indicating whether or not the first communication network is usable, that is, whether or not the own terminal is connected to the first communication network, to the switching management unit 108. Output.
- the second communication unit 106 uses the second communication network (for example, the network B shown in FIG. 1) as a communication path for communication with the server according to the connection control information input from the transmission unit 104, the second communication unit 106 receives from the server. Communication of data and transmission data from its own terminal is performed via the second communication network. The second communication unit 106 also sends second connection information indicating whether or not the second communication network is usable, that is, whether or not the terminal is connected to the second communication network, to the switching management unit 108. Output.
- the second communication network for example, the network B shown in FIG. 1
- the second communication unit 106 receives from the server. Communication of data and transmission data from its own terminal is performed via the second communication network.
- the second communication unit 106 also sends second connection information indicating whether or not the second communication network is usable, that is, whether or not the terminal is connected to the second communication network, to the switching management unit 108. Output.
- the time measuring unit 107 is the time when the information is input. The elapsed time from is timed. Then, when the elapsed time exceeds a preset time, the time measuring unit 107 outputs time information indicating that the preset time has elapsed to the switching management unit 108.
- the switching management unit 108 manages connection switching between the first communication network and the second communication network as a communication path between the own terminal and the server. Specifically, the switching management unit 108 first uses available communication based on the first connection information input from the first communication unit 105 and the second connection information input from the second communication unit 106. Identify the net. For example, when the second communication network that is prioritized over the first communication network that is currently connected (for example, faster than the first communication network) can be used, the switching management unit 108 The transmission unit 104 is instructed to switch the connection from the first communication network to the second communication network.
- the switching management unit 108 when the connection status information input from the transmission unit 104 includes a response from the server to the request of the terminal itself, the switching management unit 108 outputs the connection status information to the time measuring unit 107. Then, when time information is input from the time measuring unit 107 (that is, when a preset time has elapsed), the switching management unit 108 instructs the transmission unit 104 to perform connection switching. However, if the switching management unit 108 detects operation input information from the input management unit 102 before the time information is input from the time measuring unit 107, the switching management unit 108 does not switch the connection of the communication network. Instruct.
- password authentication will be described as an example of a service between the terminal 100 and the server.
- the terminal 100 is located on the network A shown in FIG. 1 and performs password authentication with the server A located on the network C. Further, the terminal 100 communicates with the server A via the network A as a communication path. Further, when performing password authentication, the server A distinguishes a plurality of terminals based on the IP address of the request source requesting the service.
- FIG. 5 shows a sequence diagram when password authentication is performed between the terminal 100 and the server A.
- the same processes as those in FIG. 5 are identical processes as those in FIG. 5
- terminal 100 determines whether or not to switch connection from network A to network B as a communication path with server A.
- switching management section 108 determines whether or not operation input information is input from input management section 102.
- operation input information is not detected, that is, when there is no input of operation input information (ST103: NO)
- the process proceeds to ST102.
- the switching management unit 108 does not perform connection switching (ST102) of the communication network.
- the transmission unit 104 does not perform communication network connection switching even when connection switching to a communication network with a higher priority is possible.
- the switching management unit 108 detects the operation input information from the input management unit 102 and instructs the transmission unit 104 not to switch the communication network connection (ST102 shown in FIG. 6). Instruct.
- the terminal 100 transmits the password addressed to the server A to the GW1 shown in FIG. 1 in the same manner as the transmission of the display request in ST2.
- GW1 converts the source address of the password from terminal 100 into its own IP address (IP-A) of network C, and transmits the password with the source address converted to server A. To do.
- IP-A IP address
- the server A recognizes that the password is transmitted from the same terminal as the password input data transmission destination because the password input data transmission destination address is IP-A and the password transmission source address is IP-A.
- the password authentication is successful (ST19).
- server A transmits, for example, next screen data, which is the next screen of the password input screen, to GW1, which is a password transmission source (IP-A).
- GW1 performs address reverse conversion and transmits next screen data to terminal 100.
- terminal 100 displays next screen data.
- the terminal 100 determines that there is a relationship between a plurality of requests transmitted before and after the operation input, and does not perform connection switching of the communication network. Therefore, it is possible to prevent the service from being continued by switching the communication network connection between a plurality of requests related to each other. That is, when the terminal 100 detects an operation input, the server 100 also serves as a server during this request (ST17 password transmission shown in FIG. 5) in the communication network connected at the previous request (ST2 display request shown in FIG. 5). It is possible to connect to the server via the same communication network (here, network A shown in FIG. 1) as the previous request transmission.
- the terminal does not perform connection switching even when the connection switching of the communication network is possible when the operation input is detected. That is, the terminal can continue the service including the plurality of requests by restricting the switching of the communication network connection between the plurality of requests related to each other.
- the terminal switches the communication network connection.
- more suitable communication can be performed with the server. Therefore, according to the present embodiment, connection switching to a more suitable communication network can be performed while the service from the server is normally executed.
- Embodiment 2 Depending on the server, even if the communication path with the terminal is changed between a plurality of requests that are related to each other, such as password authentication, the service can be continued without problems. For example, suppose that the server assigns a unique identifier to a request together with a password input request. The server then instructs the terminal to send a password along with its unique identifier. As a result, even if the destination IP address of the password input request at the time of password input request is different from the password source IP address at the time of password reception, the server can use the password from the same terminal as long as the unique identifier is the same. Can be determined.
- the terminal When the terminal is provided with a service from a server that can accurately distinguish the terminal even when the communication path is changed as described above, the terminal performs connection switching management of the communication network described in the first embodiment. There is no need. In other words, the connection of the communication network described in the first embodiment is performed only when the terminal is provided with a service from a server that causes a problem that the service cannot be continued if the connection of the communication network is switched while providing the service. Switching may be performed.
- the terminal stores a server that causes a problem that the service cannot be continued if the connection of the communication network is switched while providing the service, and the server that provides the service to the terminal stores the server. Do not switch connection of communication network if it matches with the current server.
- FIG. 7 shows the configuration of terminal 200 in the present embodiment.
- the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the storage unit 201 stores a server in which there is a problem that the service cannot be continued if the connection of the communication network is switched while the service is being provided.
- the storage unit 201 stores the IP address of the server.
- the storage unit 201 may store in advance a server that causes a problem that the service cannot be continued if the connection of the communication network is switched while the service is being provided.
- the terminal 200 may update the server information stored in the storage unit 201 based on information notified from the system. Or the terminal 200 may determine the server memorize
- the switching management unit 108 receives operation input information from the input management unit 102 and further includes information on the server that provides the service to the terminal itself (for example, the IP address of the server). Information is input from the transmission unit 104. Then, the switching management unit 108 detects the operation input information, and the server indicated by the server information included in the connection state information (that is, the server that provides the service to its own terminal) is stored in the storage unit 201. If it matches the existing server, the transmission unit 104 is instructed not to switch the connection of the communication network.
- terminal 200 communicates with a server stored in storage unit 201 (that is, a server that cannot continue a service due to communication network connection switching between a plurality of requests).
- a server stored in storage unit 201 that is, a server that cannot continue a service due to communication network connection switching between a plurality of requests.
- terminal 200 is communicating with a server that is not stored in storage unit 201 (that is, a server that supports communication network connection switching between a plurality of requests).
- a server that is not stored in storage unit 201 that is, a server that supports communication network connection switching between a plurality of requests.
- the connection of the communication network can be switched when a better connection to the communication network is possible regardless of whether or not there is an operation input.
- FIG. 8A shows an example of an HTML (Hyper Text Markup Language) tag included in password input data (FIGS. 2 and 5) requesting password input as an example of a response from the server to a terminal request.
- HTML Hyper Text Markup Language
- the first and sixth lines indicate HTML data.
- the form element in the second to fifth lines indicates the definition of the reply method from the terminal to the server, and the input element indicates the input format of the reply data.
- input password: at the top of the third line in FIG. 8A is simply a display description indicating what input is to the user.
- the contents shown in the upper part of FIG. 8B are displayed. Specifically, as shown in the upper part of FIG. 8B, a reply editing area is displayed corresponding to the third line in FIG. 8A, and a reply sending button is displayed corresponding to the fourth line in FIG. 8A.
- the URL Uniform Resource Locator
- http: // indicates that the protocol used for communication with the server is HTTP (Hyper Text Text Transfer Protocol)
- HTTP Hyper Text Text Transfer Protocol
- 0.html is the reply specified in the second line of FIG. 8A.
- the response from the server to the request for the terminal may include information for requesting the reply of the terminal by the operation input (the password in FIGS. 8A and 8B).
- the HTML tag is included, it can be determined that the terminal itself needs to further reply to the data (response) from the server. That is, when the data transmitted from the server includes information requesting a reply from the terminal by an operation input, the terminal configures a plurality of requests that the terminal transmits to the server before and after the data as one service. It is possible to determine that the requests are requests (related requests).
- the terminal switches the communication network connection. Do not do.
- terminal 100 (FIG. 4) according to the present embodiment, operation input information input from input management unit 102 to switching management unit 108 becomes unnecessary.
- reception data for example, an HTML tag illustrated in FIG. 8A
- the switching management unit 108 determines that the input unit 101 performs an operation input process on the received data. That is, when the data received from the server includes information requesting a reply by an operation input, the switching management unit 108 determines that there is a relationship between a plurality of requests transmitted before and after the received data. The communication network connection is not switched.
- the switching management unit 108 determines that the input unit 101 does not perform operation input for the received data. In this case, the switching management unit 108 instructs the transmission unit 104 to switch the communication network if connection switching to a more suitable communication network is possible.
- the terminal 100 does not switch the connection of the communication network while a service including a plurality of requests related to each other is performed. Therefore, according to the present embodiment, the same effect as in the first embodiment can be obtained.
- the operation input is not limited to the password input, and may be, for example, a mail edit, an electronic bulletin board, or a character input in chat.
- the present invention can be applied to communication systems and the like.
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Abstract
Description
本実施の形態に係る端末100の構成を図4に示す。 (Embodiment 1)
FIG. 4 shows the configuration of
サーバによっては、パスワード認証のように互いに関連のある複数の要求の間で端末との通信経路が変更されても、問題無くサービスの提供を継続できる場合がある。例えば、サーバがパスワード入力の要求とともに、その要求に対して固有の識別子を割り当てるとする。そして、サーバは、その固有の識別子とともにパスワードを送信するように端末に指示する。これにより、パスワード入力の要求時のパスワード入力要求の送信先IPアドレスと、パスワード受信時のパスワード送信元IPアドレスとが異なる場合でも、サーバは、固有の識別子が同一であれば同一端末からのパスワードであると判断することができる。 (Embodiment 2)
Depending on the server, even if the communication path with the terminal is changed between a plurality of requests that are related to each other, such as password authentication, the service can be continued without problems. For example, suppose that the server assigns a unique identifier to a request together with a password input request. The server then instructs the terminal to send a password along with its unique identifier. As a result, even if the destination IP address of the password input request at the time of password input request is different from the password source IP address at the time of password reception, the server can use the password from the same terminal as long as the unique identifier is the same. Can be determined.
端末の要求に対するサーバからの応答の一例として、パスワード入力を要求するパスワード入力データ(図2および図5)に含まれるHTML(Hyper Text Markup Language)タグの一例を図8Aに示す。 (Embodiment 3)
FIG. 8A shows an example of an HTML (Hyper Text Markup Language) tag included in password input data (FIGS. 2 and 5) requesting password input as an example of a response from the server to a terminal request.
Claims (3)
- 自装置と、自装置にサービスを提供中のサーバとの間の通信経路としての第1の通信網および第2の通信網の接続切り替えを管理する管理手段と、
前記サービスに対して操作入力を行う入力手段と、を具備し、
前記管理手段は、前記操作入力を検出した場合、または、前記サーバから送信されるデータに前記操作入力による返信を要求する情報が含まれる場合、前記接続切り替えを行わない、
端末装置。 Management means for managing connection switching between the first communication network and the second communication network as a communication path between the own device and a server providing a service to the own device;
Input means for performing an operation input to the service,
The management means does not perform the connection switching when the operation input is detected, or when the data transmitted from the server includes information requesting a reply by the operation input.
Terminal device. - 前記サービスを提供中に前記接続切り替えを行うと問題が発生するサーバを記憶する記憶手段、をさらに具備し、
前記管理手段は、前記操作入力を検出し、かつ、自装置に前記サービスを提供するサーバが前記記憶手段に記憶されたサーバと一致する場合、前記接続切り替えを行わない、
請求項1記載の端末装置。 Storage means for storing a server that causes a problem when the connection is switched while providing the service;
The management unit detects the operation input, and does not perform the connection switching when a server that provides the service to its own device matches a server stored in the storage unit.
The terminal device according to claim 1. - 端末装置と、前記端末装置にサービスを提供中のサーバとの間の通信経路としての第1の通信網および第2の通信網の接続切り替えを管理する接続切り替え管理方法において、
前記サービスに対する操作入力を検出した場合、または、前記サーバから送信されるデータに前記操作入力による返信を要求する情報が含まれる場合、前記接続切り替えを行わない、
接続切り替え管理方法。 In a connection switching management method for managing connection switching between a first communication network and a second communication network as a communication path between a terminal device and a server providing a service to the terminal device,
When the operation input for the service is detected, or when the data transmitted from the server includes information requesting a reply by the operation input, the connection switching is not performed.
Connection switching management method.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/121,639 US20110185054A1 (en) | 2008-10-02 | 2009-08-21 | Terminal device and connection switching management method |
CN2009801383520A CN102172080A (en) | 2008-10-02 | 2009-08-21 | Terminal device and connection switching management method |
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JP2008-257022 | 2008-10-02 | ||
JP2008257022A JP2010088008A (en) | 2008-10-02 | 2008-10-02 | Terminal device and connection switching management method |
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WO2010038350A1 true WO2010038350A1 (en) | 2010-04-08 |
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PCT/JP2009/004015 WO2010038350A1 (en) | 2008-10-02 | 2009-08-21 | Terminal device and connection switching management method |
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US (1) | US20110185054A1 (en) |
JP (1) | JP2010088008A (en) |
CN (1) | CN102172080A (en) |
WO (1) | WO2010038350A1 (en) |
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JP6311417B2 (en) * | 2014-04-08 | 2018-04-18 | 富士通株式会社 | Wireless communication apparatus, wireless communication method, and wireless communication program |
US10207185B2 (en) * | 2015-03-07 | 2019-02-19 | Sony Interactive Entertainment America Llc | Using connection quality history to optimize user experience |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11289278A (en) * | 1998-04-01 | 1999-10-19 | Toshiba Corp | Portable radio terminal equipment |
JP2005110028A (en) * | 2003-09-30 | 2005-04-21 | Kyocera Corp | Portable communication device, program and computer-readable recording medium |
JP2008098880A (en) * | 2006-10-11 | 2008-04-24 | Nec Corp | Radio communication terminal, radio communication network system and handover timing determination method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3796200B2 (en) * | 2002-06-20 | 2006-07-12 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Wireless communication system and switching method |
JP2005101930A (en) * | 2003-09-25 | 2005-04-14 | Kyocera Corp | Portable communication terminal |
KR100697416B1 (en) * | 2003-09-30 | 2007-03-20 | 교세라 가부시키가이샤 | Mobile communication terminal, information providing system, and computer readable recording medium storing program |
GB2439123B (en) * | 2006-06-15 | 2008-05-14 | Nec Technologies | Handover in mobile phone network |
CN102572833B (en) * | 2008-04-28 | 2016-08-10 | 华为技术有限公司 | A kind of holding successional method, system and device of customer service |
-
2008
- 2008-10-02 JP JP2008257022A patent/JP2010088008A/en not_active Withdrawn
-
2009
- 2009-08-21 CN CN2009801383520A patent/CN102172080A/en not_active Withdrawn
- 2009-08-21 WO PCT/JP2009/004015 patent/WO2010038350A1/en active Application Filing
- 2009-08-21 US US13/121,639 patent/US20110185054A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11289278A (en) * | 1998-04-01 | 1999-10-19 | Toshiba Corp | Portable radio terminal equipment |
JP2005110028A (en) * | 2003-09-30 | 2005-04-21 | Kyocera Corp | Portable communication device, program and computer-readable recording medium |
JP2008098880A (en) * | 2006-10-11 | 2008-04-24 | Nec Corp | Radio communication terminal, radio communication network system and handover timing determination method |
Also Published As
Publication number | Publication date |
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CN102172080A (en) | 2011-08-31 |
US20110185054A1 (en) | 2011-07-28 |
JP2010088008A (en) | 2010-04-15 |
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